Annealing-box.



P. E. MESTA.

ANNEALING BOX. APPLICATION FILED AUG. 2

Patented D lNVENTDH 44 :4,

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rrn "r r arena wpgg 'RETDRIl'CK E. MESTA, OF PITTSBURG, YENNSYLVANIA, ASSIGNOR TQMESTA MACHlNE GOM'EANY, OF PITTSBUBG, PENNSYLVANIA, A. QQRPORATIGN O13 P- RTNSYL'VANIA.

.ANNEALING-BOX.

Specification of Ilettersfatent.

Patented see. as, race.

Application filed August 2, 1Sl09. Serial No. 510,532.

h To all whom it may concern:

Be it known that I, Fnnnnniox E. MESTA, of Pittsburg, Allegheny county, Pennsylvania, have invented a new and useful Annealing-Box, of which the following IS a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a side View, partly broken away, of an annealing box embodying my invention Fig. 2 isa section on the line il -H of Fig. 1 looking upwardly; and Fig. 3 is a section on the line Ill-4U. of Fig.4.

My invention has relation to annealing boxes,-and is designed to provide a'novel construction of box adapted to withstand the severe heat to which it is subjected in service, and whichpossesses certain novel features of construction by which it is rendered inore durable than boxes heretoforp generally in use.

The precise nature of my invention will he bestunderstood by reference to the accompanying drawings, in which I have shown the preferred embodiment thereof, and which will now be described, it being premised that various changes may be made in the details of the construction and arrangement of the arts without departing from the spirit and scope of my invention as defined in the claims.

In these drawings, the numeral 2 designates the base or bottom portion of the box, and 3 the top portion or box proper. This top portion is preferably formed as a single integral castin of oblong rectangular form, with an arched top or roof 4. For the purpose of supporting this roof and preventing collapse -thereof, its under side is provided with the central parallel longitudinally exbeingpreferably considerably tirely across the roof.

tending webs or ribs 5 and 6 which are separated. from. each other a short distance. These webs are broken or interrupted at intervals by the transverse truss or supporting webs 7 which connect them. with the side walls of the box, the points of connection of said webs 7 with the roof wall above the points where the roof springs from or joins the sides of the box. The webs 7 are arranged in pairs, as shown, and extend en- These webs, together with the webs and ribs 5 and 6, may be cored out as indicated at 8, for the purpose of lightening the construction.

The side and end walls of the box are reinforced and stiffened by the vertical'outward swells or ribs 9. One of these swells or ribs is provided adjacent to the ends of each pair of the truss or brace webs 7. They are preferably of convex form on their outer surfaces and concave on the inner side, the metal therein being of the same thickness as the metal of the body portion of the box, whereby the formation of strains in the casting prevented. (line of these reinforcing ribs or swells is also provided at each end of the box and joins the ends of the longitudinal webs 5 and 6. The swells or ribs 9 are preferably connected by one or more longitudinal exterior ribs 10, these ribs also extending around the ends and corners of the box, as shown in Fig. 2. The roof of the box is also preferably provided with the central longitudinal reinforcing rib or swell 11.

The base portion 2 may be of any ordinary orv usual construction, except that the upwardly extending side and end flanges 12 are preferably provided with a plurality of vertical slits or slots 13. These slits or slots are provided at intervals, and are for the purpose of relieving the strains due to exansion and contraction, it having been found that in boxes as heretofore constructed with. solid flanges, such flanges are apt to give way and break down.

..The advantages of my invention will be apparent to those skilled in the art. The arrangement of the webs or braces 5, ti and 7 is such as to form a compound truss for the arched .roof of the box, which greatly strengthens it and prevents its collapse. The provision of the swells or ribs 9 also greatly stiifens and strengthens the side and end walls of the box. The webs 5, 6 and 7 are preferably of substantially uniform thickness at all points and do not differ greatly in thickness from the thickness of the side and end walls of the box, which greatly facilitates the casting and prevents the formation of initial strains.

What I claim isz" 1. An annealing box formed as an in tegral casting and having an arched roof, said roof being provided with interior trussing or bracing webs arranged both transverse ly and 1t, gitudinally of the box;sub-' stantially asdescribed. e 2, An anneal'in box formed as-an' in- .t'egral casting an having an arched roof J 4.'fA"c'ast steel annealing integral arched roof provlded with a plu- "go rality of transversely extending interior webs, said webs being arran ed 'inpairs and above the line of junction .the arched roof and the side walls of the box; substantially ias described; I c v 5' 5. 'A cast steel annealing box havin an integral arched roof and a plurality o interior'transverse we s, said webs bein arranged inpairs; substantiall as described i 6. A cast steel annealing box having an integral arched roof pro'v1ded with centrally arranged interior-1ongitudinal1 extending bracing webs, and bracing mem are joining said webs to'the wall of the'roof; substana vtially as described;

7. A cast annealing box having an integral arched roof provided with parallel- Interior centrally arranged longitudinally extending strengthening-ribs or webs, and a plurality of transverse stifi'ening members 46 Joining the webs or ribs to the wall of the roof; substantially as described, a

-- 8.- A cast annealing box having an integral arched roof provided with parallel "interior centrally arranged longitudinally 46 extending strengthening ribs or webs, and a plurality of transverse stiffening members f Joining the webs or ribs to the wall of the roof, said membersbelng arranged in pairs;

substantially as described. I50 "9. A cast annealin form a plurality of vertical reinforcements,

the metal of such reinforcements being subuniform. in thickness with the tion of the box; subbox having .an

box having integral side, end androof wa ls, the side walls hav-' ing portions thereof swelled outwardly to,

my hand. 1

ng reinforcements, and the box havthe vertically extending rein- 11. A casft annealin box havingintegral side, end and roof wa s, the side walls having portions thereof swelled outwardly to provide vertically arranged reinforcements,

' said reinforcements extending upwardly over the roof of the box; substantially as described.

12. An annealing box having integral side, end-and roof walls, the roof walls having transversely extending interior truss ing exterior longitudinally extending ribs I connecting forcements;substantially as describe members arranged in pairs, and the. side walls. having vertically extending reinforc substantially astdescribed. 13. An annealing box havin integral side, end and roof walls, the roo wall :hav-

in-g ribs or -swells wh-ichmi'e connected at "their upper ends to the said truss members;

sof-

ing a system of interior bracing ribs or webs arranged both longitudinally and transversely of the box, and the side and end walls having vertical reinforcing swells; substantially as described, -Jf

14. An annealing box having an inte roof portion provided withinterior-braemg ribs or webs, and having its central peruse swelled outwardly and upwardl toipr'ovide i a longitudinal reinforcement, t '0, metal of}: a

such reinforcement being substantially equ .2

in thickness to that of the body portion'o the roof; substantially as described. 15.- An annealin vided with vertical y extending flanges,-sa i flanges having therein-a lurahty of'vertic slots 'or slits; substantial as described"; 7. 16. An annealin box having an'integra roof portion provided with interior brae ribs or webs, and having its centralport box having a base" swelled outwardly andtupwardli to PIOVidQi-i 4 tilongitudinal reinforcement, t e metal of,

suchrcinforcement being substantially equal in thickness tothat of the body portion off? the roof, said reinforcement extending 0on tinuously the full length of the roof and also downwardly along the ends of ,the'box; subt 17. An annealing box having. an inte ral r stantially as described.

arched roof, whose central portlon is swe led outwardly to'form a convexo-concave rein-' forcement, the metal of which is substan-,

tially uniform in thickness with the metal of the body 'portion of the roof; substantially as described 4 I In testimony whereof, I have hereunto set FRnDRIo ni iuns'ra,

.Witne sses: f '3 A G. E; Townsnnn, I

J. B. Oormonmr. 1 

